Below are links to sites to either use in a lesson, or to send the students to for them to practice.

Test your knowledge of national flags of Spanish speaking flags:
http://www.syvum.com/cgi/online/serve.cgi/quiz/flags/flags_spanish.html?question_hide

This wesite shows all of the flags and when you click on the name of the country below the flag it links you to facts and information about that country:
http://www.infoplease.com/spot/hhmflags1.html#axzz0yYqLofKf

Here are a couple of printable word documents with all of the flags: